Radiculopathy patterns by level — Flashcards

Flashcard 1: Identify the spinal cord level based on these histological features: oval shape, largest amount of white matter, and presence of both fasciculus gracilis and fasciculus cuneatus: _____

Answer: Cervical

Flashcard 2: Identify the spinal cord level characterized by a small overall diameter, a high ratio of gray matter to white matter, and large ventral and dorsal horns:

Answer: Sacral

Flashcard 3: Nerves C1–C7 exit _____ their corresponding vertebrae

Answer: above

Extra: Cervical nerves **C1–C7** exit **above** (superior to) their corresponding vertebrae. Nerve **C8** exits **below** the C7 vertebra (and above the T1 vertebra). All spinal nerves from **T1 downwards** exit **below** (inferior to) their corresponding vertebrae.

Flashcard 4: Spinal stenosis occurs most commonly in the _____ region

Answer: lumbar

Flashcard 5: The _____ of a peripheral nerve surrounds a fascicle of nerve fibers

Answer: perineurium

Flashcard 6: What dermatome includes the thumbs? _____

Answer: C6